Overseaming-machine.



PATENTED AUG. 21, 1906'.

LJONDERDONKI OVERSEAMING MACHINE.

APPLICATION I'ILIBD JUNE 4, 19 01.

5 SHEETS-SHEET 1.

w/massss Q A NORA/Er No. 829,349. v PATENTED 'AUG. 21,. I906;

L..ONDERDONK.

OVER'SEAMING. MACHINE.

APPLICATION FILEDjJUNjE 4, 1901 5 sums-sum z.

WITNESSE I v N my vgwrin I ATTORNEY T ote-29349. PAT-ENTED AUG. 21,1906. L. ONDBRDONK.

OVERSE'AMING MACHINE.

APPLICATION FILED JUNE 4, 190}.

5 SHEETS-SHEET 5.

' ATTORNEY UNITED STATES PATENT oFFroE.

' LANSING ONDERDONK, OF NEW YORK, N. Y., ASSIGNOR TO THE UNION SPECIAL SEINING MACHINE COMPANY, OF (IIIIOAGO, ILLINOIS, A

OORPOR LTION OF ILLINOIS.

OVERSEAMlNG-MACHINE.

Specification of Letters Patent.

Patented Aug. 21, 1906.

Application filed June 4, 1901. Serial No. 63,078.

chines for finishing the edges of fabries,"the' object being to provide a sewing-machine making a stitch which shall be ornamental, elastic, and serviceable in binding or finishing the edges of out knit oods or other fabrics, which machine shall be capable of running at a high rate of speed with minimum amount of noise and friction and in which the movements of the cooperating stitch-forming implements shall be simple forward and backward short movements with no complex sidewise or oscillatory movements. 1

The invention therefore consists in the matters hereinafter described, and referred to in the appended claims.

The invention is illustrated in the accoman in drawin s in which-- 1 arm removed.

. Figure 1 is a front view of a sewing-machine embodying my invention, the front coveringplate being removed to more clearly show the parts. Fig. '2 is a similar view taken from the rear of the machine. Fig. 3 is a top planview with the top plate and overhanging Fig. 4 is a view similar to Fig. 3, showing a slightly-different arrangemerit for supporting the looper and spreader.

Fig. 5 is-v a perspective view showing the relation of the parts, certain of thembeing deand F the eccentric comiccting-rod through which connection is made from the drivingshaft- G to the nccdlc-lcvcr, all these parts being of the familiar construction.

The novel features of the presentmachine reside in certain [features of ctmstruction, which will be hereinafter referred to.

Upon the driving-shaft G is mounted an eccentric H, which carries a crank I, embraced by the clamping-collar K on the lower end of the connecting-rodL, which at its upper end is freely pivoted by a ball-and-stud connection M to the arm N of a bell-crank lever pivoted at O on the machine-frame and having a downwardly-extending arm P, carrying at its lower end a ball-stud Q, to which is attached in the usual manner the head R on the end of the pitman S. which at its opposite cndhas a head T embracing'a ball on the stud U, secured. to the arm V, which is secured to the shank of the looper orlooper-support W.

The looper a is herein shown provided-with the shank W, which passes through and is journaled in the bearing-block b, adjiistably secured by slots and screws 0 (l to the machine frame, and to prevent longitudinal movement of the looper support or shank a collar e is provided upon one side of the bearing-block, which on the other side the arm-V- is shown provided with a sleeved extension secured to the looper-supporting shaft or shank. The shape of the looper, with its shank, is shown clearly in Figs. 1, 3, and 5 of the drawings, and it will be noted that the looper-shank outside of its supporting bearing-block extends to such position as that in the oscillation of the looper-supporting shaft the looper will swing from a point below the bed-plate up over the edge of the A fabric being sewed and carry its thread in position to be engaged by the needle 1 in the descent of the latter, and it will be noted that this oscillation of the looper is imparted to it regularly through the connections just described.

- In Fig. 4 a slightly-different form of looper is shown, and the bearing-block b is formed as a part of the machine-frame and is not made adjustable in the manner shown in Fig. 3; but adjustment of the looper-supportmg shaft or shank in or out is accomplished by means of the screw f and slotted block g. This adjustment is shown in detail in Fig. 10,

in which the bracket supporting. the looper shaft is provided'with a pin 100, passing through the block 9, and adjustment is effected by means of the screw f, passing through the open-ended slot 101 The means foroperating the pitman S, however, and

through it the looper supporting shaft, will be understood to 'be'the same in the'construc- 'tion shown in Fig. 4 asin that shown in Figs.

2 and 3. Cooperating with the looper .to regulate the slack is a thread-eyelet 7t, having its shank adjusta'bly secured, by means of the screwi, within a socket on a portion of the machine, herein shown as the feeddog-carrying ban.

By referring'to Figs. 5, 7, and 8 it will be noted that the looper has the open spring-eye 7c, whereby it is more easily threaded, and as it moves backwardly it will take-up the slack and help tighten up the stitch. After it gets to a certain point belowthe thread-eyelet it.

will-pull off-from the spool. Thus the thread will be kept taut during the entire backward 'rnovement'of the looper; but whenit' starts forward there will be a slack between the adjustable eyelet hand the open eyelet 7c onthe looper, this pull off of the thread 'in the backward movement to be utilized in the forward movement, preventing any strain upon the thread in the forward movement of the l'ooper. v

' 'lo cooperate with the looper mechanism just described in forming the stitch illustrated in F igs.' 7, S, and 9 ofthe drawings,l

have provided aspreader or device for manipulating the needle loop ,which at the proper time catches the needle-loop below the goods, draws the thread to a point where the looper in its forward 'niov,ement carries its own thread through said needle-loop, the spreader backing out of said needle-loop at the proper time. The mechanism for operating this needle-thread-manipulatingdevice or spreader is shown in Figs. '1, 3, and 5 and a studs on the extension 0 of the needle-lever The parts are so timed with relation toeach other and to the movements of the needle 1 as to make the stitch shownin- Figs. 7, S, and

9 of the drawings.

' A modification of the manner of supportand operating'the spreader 'X'is shown in Fig. 4, inwhich a bearing-block 2 is provided 5 of the spreader X passes, there beingelamped on this shaft the sleeve 3, having a down wardlyeextending arm 4, to which the pitnian S is operatively connect-ed. The trimming mechanism and mechanism for throwing the sameinto and out of action form the subject-matter of an application filed on the 18th day of February, 1902, Se-

rial N 0, 94,500. a Various minor modifications and 'changes in the construction of the various parts of the machine may be made without departing from the spirit of my invention.

' Having thus described my invention, what I claim, and desire to secure by'Letters Pat- 1. A sewing maehine, comprising a reciprocating needle and mechanism for operating the same, complemental stiteh-forming mech-v anism including a thread carrying looper mounted upon an oscillating support ar ranged to one side of and in rear of'the needle, said looper being attachedto its support and .extending to apoint in front of the needle, whereby it oscillates in a single plane from a point in front 'of andupon the oppositeside of the needle from the support, and below thefabrie up'over the edge into position, where'its thread will be engaged by the nee-' dle in its descent, and a spreader or loop-ear rier mounted upon an oscillating support, which support is entirely-in front of thenee dle and upon the opposite side thereof from the looper-support, said spreader being attached to its support and extending to the rear of the needle and moving from a point in rear to apoint iiifro'nt of the needle carrythe needle-thread into position to be enteredb} the threatl-carryin-g looper on its 'upwanl movement;

substantially as deg scribed.

2. A sewing-machine, comprising areci rocat-ing needle and mechanism' for operatin h the same, com pleinental stitch-forming mechanism including a" thread rarnving' loopermounted upon an oscillating support arranged to one side of and in rear of the needle, said looper being attached to its siu-iportand extending in a plane to the opposite side and in front of 'the needle, whereby it oscillates-in a single plane from a point in front of and upon the oppositeside ofthe needle from the support, and below the fabric up over the edge into position, where its thread will be engaged by the needle in its descent, and a spreader or loop-carrier mounted u pon an oscillating support, whichsupport is'entirely in front ol' the needle and upon 'l'he 'opposite side thereof from the looper-support, said spreader being attached to its support and extending to the rear of the needle and mov ing from a point in rear ton point in front of the needle to carry the needle-t h'rcad mlo position to .be-entered by the1hrcad-carrymg through which thes'han-k or supporting-shaft: l o0per on its upward movement, said loo per stantially horizontally and inclined to the angle to the line of feed and so arranged that stribed.

n1ounted,the axis of said oscillating support and spreader supports being arranged sub.-

line of feed; substantially as described.

3. In a sewing-machine, having a reciproeating needle, a complemental stitch-forming mechanism including: a looper arranged in front of said needle, and having a shank, extending diagonally across the line of feed," an oscillating support arranged at an an ledo. the line of feed, and in rear of the needle to which the shank is attached, and connections between said oscillating support and the driving-shaftof the machine, a spreader arranged in front of the needle, an oscillating support upon which the same is mounted, the axis of said oscillating support being at an in the movement of the spreader, it will cross the ath of movement of the looper; substantial y as described.

4. In a sewinganachinc having a reciprocating needle and com lemental stitch-forming mechanism, inc uding an oscillating looper, a support for saidloo )er arranged at an angle to the line of the fee( and in rear of the needle, and connections between the looper andthe driving-shaft of the machine,/ a spreader arranged in front of the needle, an oscillating support upon which the same is mounted, the axis of said oscillating support being at an angle to the lineof feed and so ar ranged that in the 'movement of the spreader it will cross the path of movement of the looper, said oscillating looper being adjustable upon its support, substantially as de- 5. In aseWing-machine having a recipre eating-needle, a complemental stitch-forming mechanism including a looper arranged in front of said needleand having a shank extending diagonally across the line of. feed, an oscillating support arranged at an angle to the lin'eof feed and in rear of the needle, to which support said shank is'attached, and connections between said oscillating support and the driving-shaft of the machine, a spreader: arranged in front of the needle, an oscillating support upon which the s me is being at an angle to the line of feed and so arranged that in the movement of the spreader it will cross the path of movement of the looper, said oscillating looper-support being adjustable in the direeti'on of its length, that is transversely of the machine; substantially as described. I r

6. In a sewing-machme having thread carrying looper moving from below the plane of the fabric up over the edge thereof, and

eomplernental stitch-formingmechanism, in-

cluding a needle and a spreader to take the loop of needle-thread andc-arry it into position to be engaged. by the looper, an adjustable thread-guide arranged in a horizontal plane which intersects the path ofmovement' of the looper and adjustable at right angles to the path of movement of saidlooper, whereby as the looper moves backward below the plane of the thread-guide, itwill take up the'slack in the looper-thread and hel tighten the stitch and pull off from the spool: k

but as it moves forwardly will cause a slac below the fabric-up over the edge mto posi tion where its thread will be engaged bythe needle in its descent, and a spreader or loopcarrier mounted upon an oscillating support, and moving from a point in rear to a point in front of the needle to carry the needle-thread into position to be entered by the threznl-carrying looper on its upward movement, a main driving-shaft? and connections between the driving-shaft and the looper-support includ-. ing a pitman operated from the (ll'iVIllg-Sllflf t, and ball-joint connections between the ends of the pitman and said looper-support; substantially as described.

In testimony whereof I ailix my signature in presence of two witnesses.

LANSING ONDERDOXK/ Witnesses W. L. SWIFT, M. VAN WAGNER. 

